add seeder for post & routing for list of post

app/Post.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace App;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Post extends Model
+{
+    protected $fillable = [
+        'title', 'content'
+    ];
+
+    protected $table = 'posts';
+}